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EP4592992A3 - Polyamide-based film, manufacturing method therefor, and cover window and display device each comprising same - Google Patents

Polyamide-based film, manufacturing method therefor, and cover window and display device each comprising same

Info

Publication number
EP4592992A3
EP4592992A3 EP25178005.2A EP25178005A EP4592992A3 EP 4592992 A3 EP4592992 A3 EP 4592992A3 EP 25178005 A EP25178005 A EP 25178005A EP 4592992 A3 EP4592992 A3 EP 4592992A3
Authority
EP
European Patent Office
Prior art keywords
polyamide
based film
display device
manufacturing
peak
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP25178005.2A
Other languages
German (de)
French (fr)
Other versions
EP4592992A2 (en
Inventor
Han Jun Kim
Dae Seong Oh
Sun Hwan Kim
Jin Woo Lee
Heung Sik Kim
Jiyeon Ryu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SK Microworks Solutions Co Ltd
Original Assignee
SK Microworks Solutions Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020200127506A external-priority patent/KR102301581B1/en
Priority claimed from KR1020200142496A external-priority patent/KR102507135B1/en
Application filed by SK Microworks Solutions Co Ltd filed Critical SK Microworks Solutions Co Ltd
Publication of EP4592992A2 publication Critical patent/EP4592992A2/en
Publication of EP4592992A3 publication Critical patent/EP4592992A3/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/42—Polyamides containing atoms other than carbon, hydrogen, oxygen, and nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/737—Dimensions, e.g. volume or area
    • B32B2307/7375—Linear, e.g. length, distance or width
    • B32B2307/7376—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polyamides (AREA)

Abstract

Embodiments relate to a polyamide-based film, a manufacturing method therefor, and a cover window and a display device each comprising same, wherein the polyamide-based film has excellent optical characteristics, such as transmittance, haze, and yellowness, and excellent mechanical characteristics, such as modulus and thickness uniformity. The polyamide-based film contains a polyamide-based polymer and includes a first IR peak having a maximum value in a section where the wavenumber is 2,950 cm-1 to 2,900 cm-1 and a second IR peak having a maximum value in a section where the wavenumber is 2,875 cm-1 to 2,825 cm-1 on an IR spectrum, wherein the area of the first IR peak may be 1.4 times or less relative to the area of the second IR peak.
EP25178005.2A 2020-09-29 2021-09-08 Polyamide-based film, manufacturing method therefor, and cover window and display device each comprising same Pending EP4592992A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020200127506A KR102301581B1 (en) 2020-09-29 2020-09-29 Polyamide-based film, preparation method thereof, and cover window and display device comprising same
KR1020200142496A KR102507135B1 (en) 2020-10-29 2020-10-29 Polyamide-based film, preparation method thereof, and cover window and display device comprising same
EP21875950.4A EP4223832A4 (en) 2020-09-29 2021-09-08 POLYAMIDE-BASED FILM, MANUFACTURING METHOD THEREOF, AND COVER WINDOW AND DISPLAY DEVICE EACH COMPRISING SAME
PCT/KR2021/012186 WO2022071675A1 (en) 2020-09-29 2021-09-08 Polyamide-based film, manufacturing method therefor, and cover window and display device each comprising same

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP21875950.4A Division EP4223832A4 (en) 2020-09-29 2021-09-08 POLYAMIDE-BASED FILM, MANUFACTURING METHOD THEREOF, AND COVER WINDOW AND DISPLAY DEVICE EACH COMPRISING SAME

Publications (2)

Publication Number Publication Date
EP4592992A2 EP4592992A2 (en) 2025-07-30
EP4592992A3 true EP4592992A3 (en) 2025-10-29

Family

ID=80950728

Family Applications (2)

Application Number Title Priority Date Filing Date
EP25178005.2A Pending EP4592992A3 (en) 2020-09-29 2021-09-08 Polyamide-based film, manufacturing method therefor, and cover window and display device each comprising same
EP21875950.4A Pending EP4223832A4 (en) 2020-09-29 2021-09-08 POLYAMIDE-BASED FILM, MANUFACTURING METHOD THEREOF, AND COVER WINDOW AND DISPLAY DEVICE EACH COMPRISING SAME

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21875950.4A Pending EP4223832A4 (en) 2020-09-29 2021-09-08 POLYAMIDE-BASED FILM, MANUFACTURING METHOD THEREOF, AND COVER WINDOW AND DISPLAY DEVICE EACH COMPRISING SAME

Country Status (5)

Country Link
US (1) US20230312825A1 (en)
EP (2) EP4592992A3 (en)
JP (2) JP7592155B2 (en)
CN (2) CN120310251A (en)
WO (1) WO2022071675A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018147617A1 (en) * 2017-02-08 2018-08-16 에스케이씨 주식회사 Polyamide-imide film and method for producing same
CN110337460A (en) * 2017-02-08 2019-10-15 Skc株式会社 Polyamidoimide film and preparation method thereof
KR20200096107A (en) * 2019-02-01 2020-08-11 주식회사 엘지화학 Polyamide resin film, resin laminate using the same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4945898B2 (en) * 2002-10-31 2012-06-06 東レ株式会社 Polyamide film and optical member using the same
KR101796174B1 (en) * 2011-05-19 2017-11-10 삼성전자주식회사 Polyamide block copolymer, method of preparing same, article including same, and display device including the article
KR101935089B1 (en) * 2012-09-24 2019-01-03 아크론 폴리머 시스템즈, 인코포레이티드 Aromatic polyamide for producing display, optical, or illumination elements
JP2015120886A (en) * 2013-11-19 2015-07-02 東レ株式会社 Aromatic polyamide film and laminate
JP2016098260A (en) * 2014-11-18 2016-05-30 住友ベークライト株式会社 Polyamide solution
JP6409540B2 (en) * 2014-12-09 2018-10-24 東レ株式会社 Film, film manufacturing method and laminate
KR20190115282A (en) 2018-04-02 2019-10-11 주식회사 엘지화학 Polyamide block copolymers and colorless and polyamide film comprising the same
KR102232648B1 (en) * 2018-06-07 2021-03-25 주식회사 엘지화학 Polyamide resin complex and and polyamide film
KR102316432B1 (en) * 2018-10-26 2021-10-21 주식회사 엘지화학 Cover window for flexible display device and flexible display device
KR102261850B1 (en) * 2018-11-05 2021-06-07 주식회사 엘지화학 Polyamide resin, manufacturing method of the same, and polyamideimide film and resin laminate comprising the same
US12031028B2 (en) * 2019-02-01 2024-07-09 Lg Chem, Ltd. Polyamide resin film and resin laminate using the same
WO2020159086A1 (en) * 2019-02-01 2020-08-06 주식회사 엘지화학 Polyamide resin film and resin laminate using same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018147617A1 (en) * 2017-02-08 2018-08-16 에스케이씨 주식회사 Polyamide-imide film and method for producing same
CN110337460A (en) * 2017-02-08 2019-10-15 Skc株式会社 Polyamidoimide film and preparation method thereof
KR20200096107A (en) * 2019-02-01 2020-08-11 주식회사 엘지화학 Polyamide resin film, resin laminate using the same

Also Published As

Publication number Publication date
JP2023541166A (en) 2023-09-28
EP4223832A4 (en) 2024-11-20
JP7592155B2 (en) 2024-11-29
CN120310251A (en) 2025-07-15
CN116323756A (en) 2023-06-23
WO2022071675A1 (en) 2022-04-07
JP2024167300A (en) 2024-12-03
EP4223832A1 (en) 2023-08-09
US20230312825A1 (en) 2023-10-05
EP4592992A2 (en) 2025-07-30

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